Tamko Home Additions & ADU Nationwide

Tamko Home Additions & ADU: The Boca Raton Owner’s Guide

We stock and install Tamko-compatible roofing, flashing, and waterproofing components for home additions and ADU projects in Boca Raton, with typical installed pricing from $45,000 to $130,000 for full additions and $90,000 to $220,000 for detached ADUs. Most Tamko material failures in our market show up during the dry season when thermal cycling is at its peak, or after a named storm when wind-driven rain finds the gap that opened last summer. If you’re seeing water stains on the ceiling of your new addition or noticing the ADU roofline sagging after a heavy Boca Raton downpour, the issue usually traces back to a specific Tamko component that we can identify and match on the first visit.

Call (754) 254-8065

Which Tamko Models This Applies To

Tamko’s residential roofing lines most commonly integrated into Boca Raton additions and ADUs include the Heritage series (Heritage, Heritage Vintage, Heritage Woodgate), the Titan XT impact-rated line, and the Elite Glass-Seal 3-tab system used on budget-conscious garage conversions and smaller ADU structures. The critical compatibility point is the fastening pattern and exposure width, Heritage carries a 5 5/8″ exposure while Titan XT runs 5 2/3″, and mixing these on the same roof plane creates a stagger mismatch that voids wind-resistance ratings under Florida Building Code TAS 100(A).

To identify your exact Tamko component, check the underside of a loose shingle for the printed date and plant code, Boca Raton deliveries typically come from the Phillipsburg, Kansas plant (code 08) or the Tuscaloosa, Alabama plant (code 03). The OEM part number matters for warranty continuity, Tamko’s limited warranty transfers to subsequent owners only with original documentation and proper installation records. We also source quality aftermarket equivalents from Atlas and CertainTeed when the original Tamko SKU is discontinued or back-ordered, though we flag this in writing before substitution because color matching across manufacturers is never exact, especially in Boca Raton’s UV-intense environment where fading accelerates after year three.

Signs Your Tamko Home Additions & ADU Is Failing

• Granule loss visible in gutters or downspout outlets. Tamko’s ceramic granule coating protects the asphalt substrate from UV degradation; heavy accumulation in gutters means the shingle body is exposed and will crack within 18-24 months in Boca Raton’s solar load. We see this most often on south-facing ADU roofs where attic ventilation was undersized during the original build.
• Curling or clawing at shingle edges, especially on the addition’s lower courses. This indicates the fiberglass mat has delaminated from the asphalt, usually from trapped moisture due to improper drip-edge flashing at the addition-to-house junction. The gap allows capillary wicking that rots the starter course from below.
• Flashing separation at the sidewall or chimney intersection. Tamko step flashing must lap minimum 2″ per course; in Boca Raton’s salt-air environment, the galvanized steel commonly used on spec homes corrodes at the bend point within 8-10 years, opening a direct water path into the framed wall.
• Sagging or soft spots when walking the roof. This signals deck saturation, often from a failed Tamko underlayment in the field of the roof or from ice-and-water shield omitted at valleys in early 2010s ADU builds. The OSB decking loses structural integrity and will require partial replacement, not just shingle overlay.
• Interior stains that appear or worsen after wind events. Tamko Titan XT shingles are rated to 160 mph, but the fastening pattern matters, six nails per shingle in the designated zone, and staple guns used on some Boca Raton ADU fast-track permits don’t achieve the required head embedment. Wind uplift pulls the fastener through rather than tearing the shingle.

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Replacement Cost & What’s Included

For a Tamko-equipped home addition or ADU in Boca Raton, our installed pricing breaks down as follows:

The range driver is deck condition and access. A straightforward Tamko Heritage re-roof on a single-story ADU with sound decking and no chimney cuts runs toward the lower end. We hit the upper range when we find rotted fascia from prior leaks, when the addition was built with 3/8″ OSB that won’t hold new fasteners, or when the Boca Raton site requires crane rental for material hoisting in a zero-lot-line neighborhood like Royal Palm Yacht & Country Club. Every quote is a flat written price with line-item scope, no change order proceeds without your signature, and the 365-Day Done Right Promise applies to all work. We pull permits, schedule inspections, and pass the final before final payment is due.

DIY or Call Us?

An owner can safely check the gutter granule load, photograph the shingle underside for plant codes, and verify whether the attic has continuous ridge venting, these are diagnostic steps that help us prepare the right materials before we arrive. What we don’t recommend is walking the roof yourself. Tamko shingles on a low-slope addition or ADU with anything less than 4:12 pitch become slick with morning dew or the algae film common to Boca Raton’s humid months, and the transition from ladder to roofline is where most homeowner injuries happen. Beyond the fall risk, improper fastening voids the Tamko warranty and the Florida wind mitigation inspection that keeps your insurance premiums where they are. If you’ve found the failure point, call (754) 254-8065 and we’ll schedule a free estimate with a written price before any work starts.

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